Related Experiment Video

Updated: Jul 3, 2025

MicroRNA Detection in Prostate Tumors by Quantitative Real-time PCR qPCR
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MicroRNA Detection in Prostate Tumors by Quantitative Real-time PCR qPCR

Published on: May 16, 2012

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MicroRNAs Associated with Androgen Receptor and Metastasis in Triple-Negative Breast Cancer

Mamoun Ahram1, Bayan Abu Alragheb2, Hassan Abushukair3

  • 1Department of Physiology and Biochemistry, School of Medicine, The University of Jordan, Amman 11942, Jordan.

Cancers
|February 10, 2024
PubMed

Insights

Researchers identified key microRNAs (miRNAs) linked to androgen receptor (AR) activity in triple-negative breast cancer (TNBC). These findings highlight potential new biomarkers and therapeutic targets for TNBC by understanding AR

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Triple-negative breast cancer (TNBC) lacks targeted therapies, necessitating novel biomarker and therapeutic target identification.
  • The androgen receptor (AR) plays a regulatory role in TNBC, partly mediated by microRNAs (miRNAs).

Purpose of the Study:

  • To investigate the relationship between AR expression, miRNA profiles, and metastatic potential in TNBC.
  • To identify specific miRNAs and signaling pathways influenced by AR in TNBC.

Main Methods:

  • Utilized PCR arrays to profile 84 miRNAs in 24 TNBC tissue samples stratified by AR expression and metastasis.
  • Employed bioinformatics tools for target prediction and pathway analysis, including Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG).

Main Results:

  • Seven miRNAs, including miR-328-3p and miR-489-3p, showed significantly higher expression associated with AR expression.
  • miR-205-3p expression was significantly linked to metastasis in TNBC.
  • Differential miRNA expression was observed in AR-positive tumors based on metastatic status, implicating roles in transcription regulation and TGF-beta signaling.

Conclusions:

  • AR influences TNBC progression through specific miRNA expression patterns.
  • Identified miRNAs and pathways (e.g., TGF-beta, kinase-dependent) offer potential as biomarkers and therapeutic targets for TNBC.
Keywords:
MicroRNATNBCandrogen receptorbreast cancermetastasis

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